function showHide(objname) {
    //只对主菜单设置cookie
    var obj = document.getElementById(objname);
    if (objname.indexOf('_1') < 0 || objname.indexOf('_10') > 0) {
        if (obj.style.display == 'block' || obj.style.display == '')
            obj.style.display = 'none';
        else
            obj.style.display = 'block';
        return true;
    }
    //正常设置cookie
    var ckstr = getCookie('menuitems');
    var ckstrs = null;
    var okstr = '';
    var ischange = false;
    if (ckstr == null) ckstr = '';
    ckstrs = ckstr.split(',');
    objname = objname.replace('items', '');
    if (obj.style.display == 'block' || obj.style.display == '') {
        obj.style.display = 'none';
        for (var i = 0; i < ckstrs.length; i++) {
            if (ckstrs[i] == '') continue;
            if (ckstrs[i] == objname) {
                ischange = true;
            }
            else okstr += (okstr == '' ? ckstrs[i] : ',' + ckstrs[i] );
        }
        if (ischange) setCookie('menuitems', okstr, 7);
    }
    else {
        obj.style.display = 'block';
        ischange = true;
        for (var i = 0; i < ckstrs.length; i++) {
            if (ckstrs[i] == objname) {
                ischange = false;
                break;
            }
        }
        if (ischange) {
            ckstr = (ckstr == null ? objname : ckstr + ',' + objname);
            setCookie('menuitems', ckstr, 7);
        }
    }
}
//读写cookie函数
function getCookie(c_name) {
    if (document.cookie.length > 0) {
        c_start = document.cookie.indexOf(c_name + "=")
        if (c_start != -1) {
            c_start = c_start + c_name.length + 1;
            c_end = document.cookie.indexOf(";", c_start);
            if (c_end == -1) {
                c_end = document.cookie.length;
            }
            return unescape(document.cookie.substring(c_start, c_end));
        }
    }
    return null
}
function setCookie(c_name, value, expiredays) {
    var exdate = new Date();
    exdate.setDate(exdate.getDate() + expiredays);
    document.cookie = c_name + "=" + escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toGMTString()); //使设置的有效时间正确。增加toGMTString()
}
//检查以前用户展开的菜单项
var totalitem = 12;
function CheckOpenMenu() {
    //setCookie('menuitems','');
    var ckstr = getCookie('menuitems');
    var curitem = '';
    var curobj = null;

    //cross_obj = document.getElementById("staticbuttons");
    //setInterval("initializeIT()",20);

    if (ckstr == null) {
        ckstr = '1_1,2_1,3_1';
        setCookie('menuitems', ckstr, 7);
    }
    ckstr = ',' + ckstr + ',';
    for (i = 0; i < totalitem; i++) {
        curitem = i + '_' + curopenItem;
        curobj = document.getElementById('items' + curitem);
        if (ckstr.indexOf(curitem) > 0 && curobj != null) {
            curobj.style.display = 'block';
        }
        else {
            if (curobj != null) curobj.style.display = 'none';
        }
    }
}

var curitem = 1;
function ShowMainMenu(n) {
    var curLink = $DE('link' + curitem);
    var targetLink = $DE('link' + n);
    var curCt = $DE('ct' + curitem);
    var targetCt = $DE('ct' + n);
    if (curitem == n) return false;
    if (targetCt.innerHTML != '') {
        curCt.style.display = 'none';
        targetCt.style.display = 'block';
        curLink.className = 'mm';
        targetLink.className = 'mmac';
        curitem = n;
    }
    else {
        var myajax = new DedeAjax(targetCt);
        myajax.SendGet2("index_menu_load.php?openitem=" + n);
        if (targetCt.innerHTML != '') {
            curCt.style.display = 'none';
            targetCt.style.display = 'block';
            curLink.className = 'mm';
            targetLink.className = 'mmac';
            curitem = n;
        }
        DedeXHTTP = null;
    }
}